If the chain is wrapped around the derailleur pulley, make sure the pulley does not pull so far back that the chain makes contact with itself.
If you’re having trouble identifying connecting rivets in your chain, search the brand name of your chain along with the words “connecting rivets. ” If your chain has connecting rivets, the manufacturer will probably have a picture of them available on their website.
You may need to unscrew part of the chain tool to retract the driving pin before you can place the tool on the rivet. Make sure the driving pin is in the center of the rivet head; otherwise, you won’t be able to force it out.
This method will allow you to easily locate the hole if you decide to reconnect the link. If you don’t plan on reinstalling or repairing the chain, feel free to push the rivet all the way out with the chain tool.
If the chain is wrapped around the derailleur pulley, make sure the pulley does not pull so far back that the chain makes contact with itself.
The master link will also probably have an embossed arrow on it pointing towards the inside of the chain loop.
If you have special pliers designed specifically for use on master links, they will automatically press the side plates inward for you. [7] X Research source
For small chains like bike chains, you most likely will not need to adjust your bolt cutters; the weakest setting will probably suffice.
You should also clamp the chain before cutting it, if possible, to make the chain easier to break. However, this is not strictly necessary for breaking a chain with bolt cutters.
Make sure you’re using a firm grip when closing the blades. If your grip is too loose, the blades may slip away from the material and cause harm to you or others around you. Some chains may require you to break off from your initial cut, reposition the blades over the cut, and apply force a second time before they finally break.
